Back-geared motor.



PATENTED MAY 7, 1907.

v No. 852,678.

H. G. REIST. BAGK' GEARED MOTOR. APPLICATION rum) 322121.1906.

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' No. 852,678, PATENTED MAY 7, 1907.

H. G. REIST.

-BAGK GEARED MOTOR. APPLICATION FILED 512F121, 1906.

2 SHEET8-SHET 2.

WITNESSES- WW INVENTDR.

HENRYGREIfiT.

UNITED STATES PATENT OFFICE.

HENRY e. REIST, or SCHENECTADY, NEW YORK, ASSIGNOR TO GENERAL ELECTRICCOMPANY, A CORPORATION OF NEW YORK.

' BAcK-GEARED MOTOR.

Specification of Letters Patent.

Patented May '7, 1907.

Application filed September 21,1906. Serial No. 835,603.

To all whom it 'ntay concern:

Be it known that I, HENRY G. REIST, a citizen of the United States,residing at Schenectady, county of Schenectady, State usefulImprovements inBack-Geared Motors, of which the following is aspecification.

This invention relates to electric motors, and its object is to providemeans whereby a standard motor can be converted into a backgeared motorwithout alteration of said motor or its sub-base.

To this end the invention consists in an intermediate frame adapted tobe interposed between the motor and the sub-base; said intermediateframe supporting a counter-shaft and gear in proper position to receivepower from the motor. Provision is made for angular adjustment of theoil cellar for said counter-shaft, so that the motor can be fastened toa wall, or inverted, if desired.

In the accompanying drawings, Figure 1 is an end elevation, partly insection, of a motor embodying my invention; Fig. 2 is a side view of thesame; Fig. 3 is a perspective View of the intermediate frame; Fig. 4 isa sectional end view of a modified construction; Fig. 5 is a perspectiveview of the counter-shaft and its oil-cellar; and 6 is a section of oneend thereof. The motor 1 is of standard construction, andis usuallybolted directly to a sub-base 2 of standard construction. In the presentinstance,-there is interposed between the motor and the sub-base anintermediate baseplate 3, which forms part of a frame composed of saidbase-plate and two upright arms 4, preferably connected by a web 5. Thearms referabl'y diverge somewhat, to give as on a bearin as possible forthe countersha t, and are iighest at apoint near one end the oil ce arare oil holes closed by screwe of the base-plate. Inthe upper end ofeach arm is a cylindrical'bearing 6, the two having a common axisparallel with but transverse to the base-plate. A combined tubularjournal box and'oil cellar 7 is supported in said bearings, havingcylindrical ends 8 which rotate readily in the bearings and arefastened, by set-screws 9 in any given position of an lar adjustment. Inthe top of preferred manner, as by oil rings of New York, have inventedcertain new and plugs 10, and in the bottom is a drain-cock Thecounter-shaft 12 is suitably journaled in the box 7 and is lubricated inany- 13. v On one end of the counter-shaft is a beltpulley 14. The otherend is geared to the motor shaft by speed-reducing ge aring, such as apinion 15 and spur-gear 16, as shown in Fig. 1; or a small sprocket 17,large sprocket 18 and chain-belt 19, as shown in Fig. 4. In either case,a gear cover 20 is provided, which can be conveniently supported byscrews 21 passing through suitable holes 22 in the arms a of the frameinto lugs 23 on the gear case; abutting lugs 24 being formed on theframe, if desired. The frame is symmetrical, both arms being alike, sothat the gear-and gear case can be put on either side as desired.

\Vhen pinion and spur-gear are used, the motor is rigidly fastened tothe frame in order to keep the gears in mesh. In addition to the usualbolt 25, which passes down through the sub-base, a dowel pin 26, orother suitable fastening, may be used between the motor and the frame,The baseplate of the frame has a central hole 27 to rei ceive and engagewith the standard slide 28 of the sub-base, so that by loosening thebolts 25 and turning the screw-shaft 29 the frame and the motor will beslid along the sub-base in the same manner that the standard motor-wouldbe adjusted if the countershaft frame were not used.

An additional adjustment for the motor is provided in Fig. 4, the baseof the motor belng slotted where the bolts 25 pass through, andadjusting screws 30 being tapped through lugs 31 on the frame'andbearing against the motor-base. By this means the belt 19 can be kepttight without disturbing the position of the belt pulley 14.

When the motor is to be-fastened to a wall, with the sub-base in avertical position, the set-screws 9 are backed off andth'e box 7 is'given a quarter rotation in the bearings 6, in order to kee the oilholes uppermost and the drain-coo at the lowest point. So, too,

ifthe motor is inverted, for attachment to a ceiling, the box 7 can begiven the proper angular adjustment to keep it in operatlve position.

tor and sub-base, and counter-shaft a 3. The combination with a standardmotoranda standard sub-base, of a frame having a base-plate interposedbetween said mohearings on said frame; 4. The combination with astandard motor and a standard sub-base, of a frame for a counter-shaftinterposed between them, and means for adjusting said framerelativel'yto the motor. I a

5.- A frame for a counter-shaftcomprising a base plate, upright armsthereon, and

alined bearings on said arms;

6. A frame for a counter-shaft, comprising a base-plate having boltholes, two upright diverging arms, alined bearings on said arms, andmeans for supporting a gear-case.

"7 'A frame for a. countershaft, comprising a. base-plate, upright armsthereon, alined j bearings on said arms, and a combined jour- I nal boxand oil cellar rotatably mounted in i said bearings.

8, The combination with a standard m0- j tor and a standard sub-base, ofan interposed frame, a journal-box and oil cellar rotatably journaled insaid box and geared to said m0- tor. 1 i 9. The combination with a motorsub-base provided with devices for adjusting the motor, of an interposedcounter-shaft frame 1 .adapted'to be actuated by said adjusting devices.10. The combination with a standard motor and a standard sub-base, of aninterposed l frame adjustable with the motor, a countershaft mounted insaid frame and geared to j sa d motor, and a gear-case supported on jsald'frame. i

In Witness whereof, I have hereunto set my hand this 20th day ofSeptember, 1906. i HENRY G. REIST. l Witnesses:

BENJAMIN B. HULL, j HELEN ORFORD.

mounted in said frame, and a counter-shaft

